低电压可调精密并联稳压器 LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
description/ordering information
The TLV431 is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF 1.24 V and 6 V with two external resistors see Figure 2. These devices operate from a lower voltage 1.24 V than the widely used TL431 and TL1431 shunt-regulator references.
Low-Voltage Operation . . . VREF = 1.24 V
Adjustable Output Voltage, VO = VREF to 6 V
Reference Voltage Tolerances at 25C
− 0.5% for TLV431B
− 1% for TLV431A
− 1.5% for TLV431
Typical Temperature Drift
− 4 mV 0℃ to 70℃
− 6 mV –40℃ to 85℃
− 11 mV –40℃ to 125℃
Low Operational Cathode Current . . . 80 µA Typ
0.25-Ω Typical Output Impedance
Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3
See TLVH431 and TLVH432 for
− Wider VKA 1.24 V to 18 V and IK 80 mA
− Additional SOT-89 Package
− Multiple Pinouts for SOT-23-3 and SOT-89 Packages
